Paver Calculator: How Many Pavers Do I Need?
Whether you're building a patio, walkway, driveway, or outdoor entertaining area, ordering the correct number of pavers is essential for keeping your project on schedule and within budget. Our free Paver Calculator helps homeowners, contractors, and DIYers estimate the number of pavers required from the project dimensions, paver face size, and waste allowance. Use the BuildCalculatorsHQ Paver Calculator to estimate your paver quantity in seconds, then confirm the separate base and bedding requirements for your installation.
Step-by-Step: Calculating Your Landscaping Needs
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What Is a Paver Calculator?
A Paver Calculator estimates the number of pavers required from the project length, width, paver face size, and waste allowance. The BuildCalculatorsHQ calculator does not calculate joint spacing, pattern-specific layout loss, base gravel, bedding sand, or edge restraints, so confirm those items separately before purchasing materials.
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How to Calculate Pavers
Basic Formula: Project Area ÷ Paver Face Area = Base Number of Pavers. Multiply that result by 1 plus the waste percentage, then round up to a whole paver. The calculator applies the selected waste allowance but does not adjust for joint spacing or a pattern-specific layout.
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Example Calculation
A 20 ft × 15 ft patio has 300 sq ft of area. A 6 × 9 inch paver has a face area of 0.375 sq ft, so 300 ÷ 0.375 = 800 base pavers. With a 10% waste allowance, the quantity to buy is 880 pavers. Base gravel, bedding sand, joint width, cuts, and pattern layout must be estimated separately.
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Common Paver Sizes
Paver sizes vary by project type — see the reference table below for common sizes and their typical uses.
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Base Material Recommendations
Most paver installations require 4–6 inches of compacted base gravel, 1 inch of bedding sand, polymeric sand between joints, and edge restraints around the perimeter.
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Should You Order Extra?
Most professionals recommend ordering 5–10% extra pavers to account for cuts, breakage, future repairs, and pattern layouts.
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Common Mistakes
Avoid forgetting joint spacing, ordering the exact quantity with no buffer, skipping edge restraints, using insufficient base material, and not compacting the base properly.
Common Paver Sizes
| Paver Size | Typical Use |
|---|---|
| 4 × 8 in | Walkways |
| 6 × 6 in | Patios |
| 6 × 9 in | Patios & Walkways |
| 12 × 12 in | Large Patios |
| 24 × 24 in | Modern Designs |
Get an instant estimate with the Paver Calculator
Use the free BuildCalculatorsHQ Paver Calculator to estimate paver quantity from project dimensions, paver size, and waste allowance for your next patio, walkway, or driveway project.
Frequently Asked Questions
How many pavers are in one square foot?
It depends on the paver size. The calculator automatically determines the correct quantity.
How much gravel should go under pavers?
Most patios require 4–6 inches of compacted gravel.
Do I need sand under pavers?
Yes. A 1-inch layer of bedding sand helps level the pavers.
Should I order extra pavers?
Yes. Ordering 5–10% extra is recommended.
Can I replace individual pavers later?
Yes. Keeping extra matching pavers makes future repairs much easier.
Do pavers need edge restraints?
Yes. Edge restraints help prevent movement and maintain the shape of your project.